Sampling device.



R. C. NEWHOUSE.

SAMPLING DEVICE.

APPLICATION FILED AUG. 1. 1914.

Patented Feb. 8, 1916.

RAY c. NEWHOUSE, OEMILWAUKEE, WISCONSIN, ASSIGNOR To ALnIs-cHALMEnsMANUFACTURING DELAWARE.

Application filed August 1, 1914. Serial No. 854,889.

7 To all whom it may concern Be it known that I, RAY C. NnwHoUsn,acitizen of the United States, residing at Milwaukee, in the county 'ofMilwaukee and State of Wisconsin, have invented a certain new and usefulImprovement in Sampling -Devices, of which the following is aspecification.

This invention relates to improvements in the construction of samplingdevices and is especially applicable to devices for automaticallyremoving samples 'of material which is'being transported by means of ahelical or screw conveyer.

An object of theinventlon is to provide. a

, sampling device which is simple in construction and eflicient inoperation.

One ofthe more specific objects is to,pro-

vide a device especlally applicable for use in connection with helicalor screw conveyers, which will automatically remove samples of thematerial being transported, at regular intervals.

Another object is to provide a device which may be applied to anystandardscrew conveyer and which will operate entirely automatically. 1

A further object is to provide a device which will deliver fair. samplesof'the material. v Y

A clear conception of an embodiment of the invention may be had byreferring to the drawing accompanying and forming a part of thisspecification in which like reference characters. designate the sameparts in the various views.

Figure 1 is a transverse vertical section through a screw conveyer, afragment of the conveyer trough and a sampling device. Fig. 2 is acentral vertical section through a fragment of a sampling device.

The screw conveyer 1, which is of the usual type consisting of one ormore helical blades formed upon a central conveyer shaft, is

mounted within the conduit or conveyer trough 2, being adapted to rotatein an anti: clockwise direction as indicated by'the arrow in Fig. 1, totrough. As shown in the drawing, the convveyer 1 is urging finely groundmaterial 8 through the trough 2 from left to right as viewed in Fig. 2.,7 While .the material 8 is indicated as filling only the lower portionof the trough 2, it should be understood that Specification of LettersPatent.

a conveyer trough and through transport material 8 along the COMPANY, orMILWAUKEE, WISCONSIN, A CORPORATION 01? SAMPLING DEVICE;

Patented Feb. s"; 1916.

times entirely the trough 2 is accomplished by any suitable means suchas stove bolts. The casing 3 is provided at one side with a,lug and atthe opposite side with a discharge spout 6 which extends transversely ofthe trough 2. The sampler shaft 5 is mounted within a bearing in the lugformed on the side of the casing i 3 and has an auger or sampledischarge conveyer 7 secured to'one end thereof and disposed to rotatewithin the discharge spout 6. The star wheel 8 is secured to the samplershaft 5 at a portion thereof directly adjacent its bearing in the casing3 and has substantially radial arms, the outer extremities of which liein a circle which extends into the path of the screw conveyer 1. Betweenthe hub of the star wheel a and the end of the bore of the spout 6,thereexists an opening or passage which connects the interior of thecasing 3 directly with the interiorof the trough 2. r

' During the normal operation of the con veyer 1,

conveyer is rotated in an anticlockwise direction as viewed in Fig. 1,causing the continuous conveyer blade to constantly urge the material 8along the trough2. As the conveyer blade approaches the upwardlydirected arms of the star wheel 4, it engages one ofthe star wheel armsand causes the,

star wheel 4 to produce partial rotation of thefshaft 5 and secondary orsample conveyer 7, this rotation continuing until the engaged arm hasbeen pushed out of the the helical flange or blade of the path of theconveyer blade. When the star.

wheel arm which has been forced forward by the *conveyer blade, has beenpushed out of the path of the blade,.the next succeeding arm of the starwheel'will have been placed in the path of the conveyer andlwill beready for subsequent engagement with It willthus be seen that as the thesame.

conveyer 1 continues to rotate, the star wheel 4 is intermittentlyrotated in a clockwise direction as'viewed in Fig. 2. This rotation ofthe star wheel 4 causes the auger or conveyer 7 which is connectedthereto, to automatically forcesome of the mater al 8 which fills theinterior of the caslng 3, into termittent discharges of samples thespout 6. After the spout 6 has becenie filled with material, thecontinued intermittent rotation of the star wheel 4 causes inof thematerial from the end of the spout.

It will be noted that the sampling device consisting of the casing 3,star wheel't and gagement thereof with the continuously ro- I tatingconveyer blade. The operation of the device is moreover entirelyautomatic and when once installed the sampler-requires no furtherattention.

It should be understood that it is not desired to be limited to theexact details of construction shown and described, for obv1ousmodifications will occurto a person ski led in the art.

t is claimed and desired to secure by Letters Patent,-

1 In combination, a main casing forming a conduit, a main screw conveyermovable to transport material through said conduit,

a sampler casing communicating with said main casing conduit, and anauxiliary screw conveyer operable by said main conveyer tointermittently deliver samples ofmaterial. from sa d sampler casing.

2'. In combination, a main casing forming I a conduit, a screw conveyerhaving .a blade.

movable to transport material through said conduit, a sampler casingforming a conduit communicating with said main casing duit, and meansoperable directly by the moving blade of said conveyer tointermitthe'bottom thereof, a screw conveyer movable to transportmaterial through said con,- duit and over said opening, a sampler casingforming a conduit communicating with said main-casing conduit at saidopening, and means directly operable by a portion of said conveyeradjacent said opening for intermittently removing samples of materialfrom said samplercasing conduit.

4. In combination, a trough, a screw conveyer having a rotatable bladeadapted to transport material through said trough, a s ar wheel havingarms engageable with the blade of said conveyer, said star wheel beingrotatable-by the rotation of said conveyer blade, and a secondaryconveyer rotatable by the movement of saidstar wheelto remove from saidtrough samples of the material being transported.

7 in testimony whereof, the signature of the inventor is aflixed heretoin the presence of two witnesses.

RAY 0; mouse.

Witnesses: W. H. LmBER, V J. J. Kenn.

con-

